// Copyright (c) Appeon. All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.

using System;
using System.Data;
using System.Data.Common;
using JetBrains.Annotations;
using Oracle.ManagedDataAccess.Client;

namespace SnapObjects.Data.Oracle
{
    internal class OracleLongTypeMapping : OracleTypeMapping
    {
        public OracleLongTypeMapping([NotNull] string dbTypeName, [CanBeNull] DbType? dbType = null)
            : base(dbTypeName, typeof(long), dbType)
        {
        }

        protected override void ConfigureParameter([NotNull] DbParameter parameter, IAdoDbParameter adoDbParameter)
        {
            base.ConfigureParameter(parameter, adoDbParameter);

            if (this.DbType == null)
            {
                if (this.DbTypeName.Equals("interval year", StringComparison.OrdinalIgnoreCase) ||
                    this.DbTypeName.Equals("interval year to month", StringComparison.OrdinalIgnoreCase))
                {
                    ((OracleParameter)parameter).OracleDbType = OracleDbType.IntervalYM;
                }
            }
        }

        public override TypeMapping Clone(string dbTypeName, int? size)
        {
            return new OracleLongTypeMapping(dbTypeName, this.DbType);
        }

        protected override bool IsAssignable(Type modelType, Type dbType)
        {
            return base.IsAssignable(modelType, dbType) ||
                modelType == typeof(float) ||
                modelType == typeof(double) ||
                modelType == typeof(decimal);
        }
    }
}
